My dad was a huge startac fan. He had his for 6 years until it finally crapped out. Then he got a new motorola flip phone and it wasn't the same and he did not like it much. Now he has a blackberry.
The Star Tac was my first cell phone and I absolutely loved it. Small, long battery life, goood reception, easy to use, nice features...I really do miss it. I had it for four or five years.
Then I had some Audiovox POS, and now I am on my second Treo (the first fell inteh water). I have really tried, but cannot like the Treo to save my life. It doesn't even beep when you have voicemail - well it does - once, and then never again.
I'm probably going for a Blackberry next, as I need the e-mail and document support. Hopefully a better experience than the Treo. I have no idea why people praise the Treos so much. They suck.